/* * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl> * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl> * Copyright (c) 1993-1996 Rick Sladkey <jrs@world.std.com> * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl> * Copyright (c) 2005-2015 Dmitry V. Levin <ldv@altlinux.org> * Copyright (c) 2015 Elvira Khabirova <lineprinter0@gmail.com> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "defs.h" #include DEF_MPERS_TYPE(stack_t) #include <signal.h> #include MPERS_DEFS #include "xlat/sigaltstack_flags.h" static void print_stack_t(struct tcb *tcp, unsigned long addr) { stack_t ss; if (umove_or_printaddr(tcp, addr, &ss)) return; tprints("{ss_sp="); printaddr((unsigned long) ss.ss_sp); tprints(", ss_flags="); printflags(sigaltstack_flags, ss.ss_flags, "SS_???"); tprintf(", ss_size=%lu}", (unsigned long) ss.ss_size); } SYS_FUNC(sigaltstack) { if (entering(tcp)) { print_stack_t(tcp, tcp->u_arg[0]); tprints(", "); } else { print_stack_t(tcp, tcp->u_arg[1]); } return 0; }